Re: domain owner discourages use of this host

[Charlotte 🦝 Delenk]

Hi,
On 11.01.22 10:40, Enrico Morelli wrote:

Dear all,

sending mail to some external users I receive this error:

Recipient address rejected: Message rejected due to: domain owner discourages 
use of this host. (in reply to RCPT TO command))

What means?  Is the problem related to my postfix mail server?

Sounds like an SPF problem.



--
Charlotte

https://keybase.io/darkkirb • GPG Key 3CEF5DDA915AECB0 • https://darkkirb.de

You may want to add an “mx” to your spf record, since “genio.cerm.unifi.it” and its IP Address 150.217.146.39 does not appear to be in your nested SPF record

OpenPGP_0x3CEF5DDA915AECB0.asc
Description: OpenPGP public key

OpenPGP_signature
Description: OpenPGP digital signature